Which of the following sales results in a short-term gain/loss?

a.A capital asset bought on June 30, 2018 and sold June 20, 2019.

b.A capital asset bought on July 25, 2018 and sold August 19, 2019.

c.A capital asset bought on September 12, 2012 and sold August 19, 2019.

d.A capital asset bought on August 15, 2018 and sold August 16, 2019.

e.All of these choices are long-term gains/losses.